How much does it cost to fix Grant error code Amber neon (on panel)?

Typical repair cost for the Grant Amber neon (on panel) fault is £0-120 including labour.

Amber neon (on panel) High

Grant Amber neon (on panel) Fault Code

Q: What does the Grant Amber neon (on panel) fault code mean?

Your boiler has detected that the water pressure in the system is too low to run safely and has switched itself off to prevent damage.

Also written as AMBERNEONONPANEL — same fault.

The Grant Amber neon (on panel) fault code means: your boiler has detected that the water pressure in the system is too low to run safely and has switched itself off to prevent damage.. It appears on 3 Grant models in our database.

Technical description: Low pressure cut-out activated

Typical repair cost £0-120 (including labour)

DIY fix possible

Locate the filling loop (a flexible silver hose) usually found under the boiler or near the hot water cylinder.Open the small black valves slowly until you hear water entering the system.Watch the pressure gauge and close the valves once the needle reaches between 1 and 1.5 bar.

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

Gas Safe Register →

Grant models that show the Amber neon (on panel) fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Grant Amber neon (on panel) fault code information on this page is sourced and cross-checked against the official Grant service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026